Unnamed Memory, Vol. 6 (light novel)

The Eleterria, powerful twin orbs with the power to change the past. Oscar
and Tinasha
have one, but the other has vanished. Even alone, the mysterious
artifact can change
the course of history, and there are many who will stop
at nothing to obtain it. With
danger erupting from all around as their
wedding approaches, will the king and witch
be able to protect the orb from
falling into the wrong hands? The pair's nameless story
of love and
adventure comes to a climactic end!